Photographic printing machine



Aug. 21, 1945. G. c. GARRAWAY PHOTOGRAPHIC PRINTING MACHINE Filed March 5, 1945 10 Sheets-Sheet l INVENTOR GEORGE C.GARRAWAY ATTORNEYS Aug. 21,1945. G. c. GARRAWAY PHOTOGRAPHIC PRINTING MACHINE l0 Sheets-Sheet 2 {filed March 3, 1945 mm \mw \NVENTOR GEORG E QGARRAWAY BY w WNW EN 3% Q NNN Mb 9% WW km Nm a o \w B 2 .5 .QW um M xw mm ww m m A mm v H u Q. m .li n.- Q r n a Q u R Q% v J .8 w 9& Q m u A. \Mof H H bw Ln E Q .f E 0 RN U 2 mm 8 W i @x ATTORNEYS Aug. 21, 1948 G. c. GARRAWAY 2,382,988

PHOTOGRAPHIC PRINTING MACHINE Filed March 3, 1943 10 SheetsSheet 6 C69 '56 Z 1719 80 J6 60 0 4 76 59 x56 iNVENTOR ATTOR NETS Aug. 21, 1945. e. c. GARRAWAY PHOTOGRAPHIC PRINTING MACHINE Filed March 3, 1945 10 Sheets-Sheet 7 Swami/0'0 GEORGE C.GARRAWAY MN .mvww $3 mwwwww mg m .r H

Aug. 21, 1945. G. c. GARRAWAY 2,382,933

PHOTOGRAPHIC PRINTING MACHINE Filed March a, 1943 10 Sheets-Sheet s Fug; 6.

ATTORNEYS Aug 21, 1945. G. c. GARRAWAY 2,382,988

PHOTOGRAPHIC PRINTING MACHINE Filed March 3, 1943 10 Sheets-Sheet 9 GEORGE 'C. GARRAWAY 8- 1945- G. c. GARRAWAY 2,382,988

PHOTOGRAPHIC PRINTING MACHINE Filed March 3, 1943 10 Sheets-Sheet 10 SHUTTER Q) '6 grwmwto o &* m 8 N 4? GEORGE C.GARRAWAY 44.0.4 as. $25.:

Patented Aug. 21, 1945 UNITED STATES PATENT OFFICE (Granted under the act of March 3, 1883, as amended April 30, 1928; 370 0. G. 757) 6 Claims.

The invention described herein may be manufactured and used by or for the Government for governmental purposes, without payment to me of any royalty thereon.

This invention relates generally to photographic apparatus and more particularly to a machine for automatically making photographic prints by the projection of light rays through a negative onto a strip of sensitized material.

One of the objects of the invention is to provide a photographic machine adapted to produce rapidly enlarged photographic prints of a negative by projection.

Another object of the invention is to provide a photographic machine adapted to project an enlarged image of a negative onto a strip of sensitized material and including means adapted to be operated at predetermined time intervals for causing a plurality of exposures of said negative image to be projected onto the strip of sensitized material for automatically producing a plurality of enlarged photographic prints of the negative thereon, and at the same time the projected image is being printed to cause a grid to be printed on the sensitized material over the projected image, and also to automatically print indicia by contact in the margins of the photographic prints, for designating the lines of the grid.

Another object of the invention is to provide means on the photographic machine for auto matically controlling the period of exposures of the photographic prints and means for separately controlling the period of exposures of the indicia printed by contact in the margins of the photographic prints.

Another object of the invention is to provide means on the photographic machine adapted to move automatically the strip of sensitized material a predetermined distance after each exposure of the photographic prints and means for automatically cutting the photographic prints from the strip of sensitized material.

The improved photographic machine may be used for rapidly producing photographic prints from any object, but it is particularly adapted for rapid reproduction of prints of photographic aerial negatives with a grid and marginal indicia designating the lines of the grid produced on the prints, said machine briefly comprising a fixed frame having a roll of sensitized material, a printing portion, a feeding portion and a cutting portion mounted on one end thereof, a photographic projector adjustably mounted on its other end and adapted to project an enlarged image of the negative onto a strip of the sensitized material,

said photographic projector being mounted to move on the frame toward and away from the strip of sensitized material for projecting different enlargements of the negative image onto the strip of sensitized material, a shutter positioned to intercept the negative image projected into the sensitized material, means for automatically operating the shutter at predetermined time intervals for causing a plurality of exposures of thenegative image to be projected onto the strip of sensitized material for producing a plurality of enlarged photographic prints thereon, means for automatically cutting the photographic prints from the strip of sensitized material, outer and inner frames mounted in front of the strip of sensitized material, said inner frame adjustably mounted vertically on said outer frame, a grid, transparent members having indicia thereon and a plurality of lamps mounted on the inner frame, electrical means for energizing said lamps for exposing the indicia to the strip of sensitized material, whereb said indicia is printed on the strip of sensitized material, said indicia designating the lines of the grid, means for automatically actuating said outer frame at predetermined time intervals toward the strip of sensitized material during each exposure of the negative image for contacting the grid and transparent members having the indicia thereon with the strip of sensitized material and for moving the outer frame away from the strip of sensitized material to move the grid and indicia out of contact with the strip of sensitized material after each exposure, means for actuating said electrical means at predetermined time intervals for energizing said lamps during the contacting period of the indicia with the strip of sensitized material, automatically operated means including a feed roller and take-up rollers for moving the strip of sensitized material a predetermined distance after each exposure toward the cutting means, and means including an adjusting roller contacting with the strip of sensitized material and adapted to be adjusted on the feed roller to cause the distance from an upper edge of a photographic print to the cutting means to be a multiple of the size of the photographic print on the strip of sensitized material.

With the above and other objects and advantagesin view, the invention consists of certain featuresof construction and operation of parts which will hereinafter be described and shown in the accompanying drawings, in which- Fig. l is a side elevation of the improved photographic printing machine including a fixed lonportion, a roll of sensitized material, a cutting portion, and a portion for feeding a strip of sensitized material toward the cutting portion. on one end thereof and a photographic projector adjustably mounted longitudinally on the frame adjacent to the other end thereof and adapted to project an enlarged image of a negative onto the strip of sensitized material;

Fig. 2 is a top plan view thereof;

Fig. 3 is an enlarged fragmentary view of one side of the printing, cutting and feeding portions of the machine having a roll of sensitized ma terial mounted on one end of the frame;

Fig. 4 is an enlarged rear end view of the printing, cutting and feeding portions of the machine with the roll of sensitized material re' moved therefrom;

Fig. 5 is an enlarged fragmentary perspective view of the printing, cutting and feeding portions of the machine having a strip from the roll of sensitized material in operative position thereon;

Fig.,6 is an enlarged fragmentary view, partly in section, of the other side of the printing, cutting and feeding portions of the machine;

Fig. 7 is an enlarged fragmentary longitudinal sectional view of the machine taken on the line 1-1 of Fig. 6; V

Fig. 8 is an enlarged fragmentary front view of the printing, cutting and feeding portions of the machine;

Fig. 9 is an enlarged fragmentary, longitudinal sectional detail view, partly in elevation, of a portion of a mechanism including rollers and a friction clutch for taking up any slack in the strip of sensitized material from the feeding portion of the machine to the cutting portion;

Fig. 10 is an enlarged fragmentary detail sectional view of a part of a mechanism for adlusting the distance of the strip of sensitized material from the feeding portion of the machin to the cutting portion;

Fig. 11 is an enlarged fragmentary detail view of another portion of a mechanism including a main shaft having a one-revolution clutch shown in section mounted thereon;

Fig. 12 is a cross-sectional view taken on the line lg-l! of Fig. 11 with parts broken away;

Fig. 13 is an enlarged fragmentary perspective view of frame members partly in section having a carrier frame movably mounted thereon with means for actuating the carrier frame toward and away from the frame members and including other operative parts of the machine used in carrying out the invention;

Fig. 14 is an enlarged fragmentary detail view of a shutter and connected parts;

Fig. 15 is an enlarged fragmentary detail view of a portion of the feed roller and distance adjusting mechanism;

Fig. 16 is an enlarged detail sectional view partly in elevation of a means for looking on and unlocking a roll of sensitized material from the machine;

Fig.1? is an enlarged fragmentary sectional detail view, partly in elevation, of an overrunning clutch and connected parts used in carrying out the invention;

Fig. 18 is a fragmentary end view of the overrunning clutch taken on the line ll-l5 of Fig. 17;

Fig. 19 is a front view of a transparent element having a letter thereon adapted to be printed on the strip of sensitized material for designating a line of a grid;

asaaoaa gitudinally extending frame having a printing Fig. 20 is a wiring diagram showing the electrical connections; and

Fig. 21' is a fragmentary view of a portion of the strip of sensitized material having prints of a photographic aerial map negative produced thereon including a grid and indicia in the form of letters designating the grid lines printed on the marginal edges of the photographic prints.

Referring more particularly to Figs. 1 and 2 of the drawings, l designates a longitudinally extending supporting frame including upper and lower longitudinally extending frame members 2 and 3, respectively, and upright frame members l and 5. A photographic projector portion A of the improved photographic printing machine is mounted on the upper longitudinally extending frame members 2 adjacent to one end of the supporting frame i and printing, cutting and strip feeding portions B, C and D, respectively, are mounted on the other end thereof. The photographic projector portion A may include any suitable type of projector but for purposes of illustration is shown as being of the type illustrated in the copending application Berial No. 471,055, filed January 1, 1943, wherein a vertically extending lamp housing 5 containing a light source I is mounted on a horizontally extending carrier I for a negative 5, with said negative carrier 8 being longitudinally adjustably mounted on a pair of longitudinally extending tubular members II. An extensible bellows ll of an enlarging camera [2 extends vertically downward from the negative carrier 5 and has enlarging lenses I! mounted on its lower end, together with an image projection prism or mirror H arranged at a right angle to the main optical axis of the photographic projector for projecting an image of the negative 0 outwardly in a horizontal direction onto a strip of sensitized material II operatively arranged on the machine with its width extending transversely of the supporting'frame I. Upon actuating the photographic projector longitudinally in a forward direction away from the strip of sensitised material ii on the supporting frame i by means of a mechanism including a hand wheel II, the extensible bellows II is caused to be moved upwardly in a vertical direction by means of a mechanism including rollers l! which are adapted to ride on the upper edges of upwardly curved cam members I! to collapse the bellows for producing different enlargements of predetermined ratios or various enlargements having diflerent degrees of magnification of the negative 9 on the strip of sensitized material l5 and upon moving the photographic projector longitudinally in a rearward direction the lower end of the extensible bellows i I is caused to move downwardly in a vertical direction for other enlargements of the negative. Reference may be had to the abovementioned application for more detailed description of the photographic projector illustrated.

The enlarged image of the negative 9 is caused to pass through an automatically operated shutter is of conventional construction shown in detail in Fig. 14 and including a pair of leaves I! actuated by an outwardly extending arm 20 connected at its outer end with one end of a Bowden wire 20', the other end of which Bowden wire is connected with a plunger 21 actuated by a solenoid 22 of an electromagnet 23 connected in an electrical circuit (Fig. 20) to be hereinafter described, and enclosed within a housing 2| mounted on one of the upper longitudinally exthe-supporting frame I.

assaoas v engagement with one end of a used roll of sensitized material for replacing a new roll of sensitized material on the shafts 26 and 25, and in order to hold the shaft 25 in its operative position against the roll of sensitized material and to move it out of engagement therewith, a holding device shown in detail in Fig. 16 including an arm 29 having an aperture 30 formed therein adjacent to the upper end thereof and movably mounted at its lower end in an aperture formed in an outwardly extending portion 52 on the lower end of a downwardly extending bracket 35 provided on a bearing 34. An expansion spring 55 is provided having one end abutting against the bearing 34 audits other end pressing outwardly on the arm 29. The outer end of the shaft 25 extends through the aperture ill'of the arm 25, which aperture Ill isof a largerdiameter than the diameter of the shaft whereby, upon the spring 35 pressing outwardly on the arm,25, the

arm is caused to engage the shaft 25 and frictionally hold it in a rotative and operative posi tion. By pushing inwardly on the upper end of the arm 25 against the action of the spring 55, the shaft 25 may be pulled outwardly for'disengaging it from one end of a used roll of sensi;

tized material to remove the used roll whereby a new roll of sensitized material may be placed on the machine. A brake shoe 56 is adapted, to

bear against the roll of sensitizedmaterialfor,

providing the required tension thereon, which brake shoe is pivotally connected at 31 on the vertically upward in contact with the front surface of a transversely and vertically arranged plate 52 mounted on and in spaced relation from the front edges of the upright frame members 5 by means of bolts 53. The strip of sensitized material is then placed over a feed roller 54, the shaft 55 of which is mounted in bearings 55 mounted on the upper surfaces of short longitudinally extending frame members 51 on the upper ends of the upright frame members 4 and 5 and from the feed roller 54, the strip passes under an adjusting roller 55 of a distance adlusting mechanism, indicated generally by E, to between a pair of rubber covered take-up rollers 59 and 59' and then is inserted between a stationary blade 50 and a movable blade 6! of a conventional shearing device of the cutting portion C of the machine.

The pair of take-up rollers 59 and 59- are provided for taking up any slack in the strip of sensitized material from the feed roller 54 to the blades 60 and Bi of-the shearing'device and are mounted to rotate in contact with each other. The roller 59 is rotatably mounted in downwardly extending bearings 52 and 62' formed on brackets 53 and 63' fixedly mounted on the upper surface of a transversely extending beam 64 of the shearing device, which beam 54 is mounted on :the frame members 51. The take-up roller 59 has an elongated shaft portion 55 on one end, which extends through the bearing 52 of the bracket 53 shown in detail in Fig. 9. A friction clutch 55 is mounted on the shaft portion 55, which clutch 55 includes a disk 51 on one end of a collar 58 fixedly secured adjacent to the bearing 62 and a disk- 59 slidably mounted on the. shaft portion 55. The disk 58 is provided with an outwardly extending collar 15 having a small sprocket wheel H on the outer end thereof which is engaged by the inner end of a spring I! mounted on the shaft portion 65.

A hand -adjusting nut is is thre'adedly mounted on the outer ends of arms 38 pivotally connected at. their 7 inner ends to the upright framemembers 4 at 55 of the supporting-frame I.

In placing the strip l5 ofsensitized material outer end of the shaft portion 55 and adapted to jbear against the outer end of the spring 12 which is forced inwardly to bear against the sprocket wheel H whereby the disk 59 is adapted from the roll 25 inan operative position on the photographic machine for automatically producing prints thereon, it is first brought under a roller 40 mounted on the outerends .01. support- 'ing arms 4| pivotally mounted-at their inner.

ends at 42 on brackets 45 mounted on the rear edges of the upright-frame members 5 'at 44 of The strip'i5 is then.

brought over a roller 45 .rnounted on the arms 1 4| intermediate their ends. The arms 4-! are to engage frictionally the disk 6'I for a purpose which. will-,hereinafter appear. The take-up roller 55' is placed. on top of the take-up roller 55 and is rotatably, mounted at its ends in rect-- angular shaped bearings 14 slidably mounted in vertically extending; slots 14' formed in the bracketstl'and 552. The upper ends of the slots 14" are closed .by plates I5 and expansion springs 16 are provided in the slots between the plates 15 and bearings 14,. whereby the upper take-up 'rollerj59'f is'pr'essed into contact with the lower ends of the springs 45 bearingagain'st'the lower-g frame members 3'of the supporting frame. Land.) their upper ends pressing against -the.bearingsl 46. Adjusting nuts 49 are threadedly mounted on the upper ends of the rods 41. for raising and 1' lowering the ends of the rollers 40. and 45 horitake-up-roller 59; The small sprocket wheel 1| -isj drive n-bv a sprocket chain 11 driven by a lar g'e} sproeket-wheel "fixedly mounted on one end 19o-f the feed roller shaft 55. Gears 5!" meshing with' each other are provided on the f other-ends of the takeup rollers 59 and 59 from g the friction clutch 65.

{The adjusting roller 58 of the distance adjusting mechanism E bears against the strip of sensizontally 0n .the' rods whereby, should' -the strip 3 of sensitized material tend to travel-other than brought under a roller 50 mounted on brackets 5| on the front edgesofthe upright frame members 5 and, from the roller 50, the strip is brought "Ill tized material I5 on the feedroller 54 and is mounted on the outer ends' of arms 80, the inner ends of which arms are pivotally mounted on the upper ends of arms 8'! pivotally mounted at their lower ends on the ends of the feed roller shaft 55. Adjacent to the ends of the feed roller 54 are vertically extending arcuate-shaped members 82 having teeth 83 on their upper edges and fixedly secured to the upper surfaces of the frame members 81. A shaft 84 having reduced end portions 88 is rotatably mounted on the rocker arms 8|, which reduced end portions 88 extend through the arms 8| and have pinions 88 fixedly mounted thereon meshing with the teeth 83 of the arcuateshaped members 82. The ends of the shaft 84 adjacent to the reduced end portions 85 thereof have locking nuts 81 threadedly mounted thereon which are adapted to be threaded outwardly for engagement with the inner surfaces of the arms II for preventing rotation of the shaft 84 and hence hold the pinions 88 in a locked position on the arcuate-shaped members 82, whereby the adjusting roller 58 is held in its adjusted position on the feed roller 84. Upon loosening up on the adjusting nuts 81 on the ends of the shaft 84 in a direction away from the arms 8|, the shaft 84 may rotate, thus permitting the pinions 88 to move around on the arcuate-shaped members 82 in mesh with the teeth 83 thereof for adjusting the roller 88 on the feed rollers 54 to vary the distance of the strip of sensitized material I5 from the feed roller 84 to the blades 88 and 8| of the shearing device for a purpose which will hereinafter appear. Springs 88 are connected between the arms 88 and 8| for holding the adjusting roller 88 in contact with the sensitized material on the feed roller 84.

A conventional overrunning clutch 88, shown in detail in Fig. 17, is mounted on the opposite end of the feed roller shaft 88 from the sprocket wheel 18, said clutch comprising a hub 88 keyed to the feed roller shaft 55 and provided with a plurality of flat surfaces 8| having rollers 82 movably mounted thereon engaged by a race 83 in a housing 84 which carries a gear 88 meshing with the upper end of a rack 88 slidably mounted In a bracket 81 mounted on the feed roller shaft 85. The lower end of the rack 88 is pivotally mounted on a crank pin 88 having an enlarged head 88 formed on its inner end which is adjustably mounted on a threaded shaft I88 rotatably mounted on end plates I8| of a pair of parallel bars I82 and I82 of a crank I83 which is fixedly mounted on one end of a main shaft I84 rotatably mounted in bearings I84 mounted on the upright frame members 8. The crank pin 88 has an enlarged portion 88' formed thereon adjacent to its head 88, which enlarged portion 88' carries an index I88 for a suitable graduated scale I88 on the bar I82 of the crank I83 and the lower end of the rack 88 is pivotally held on the outer end of the crank pin 88 by a nut I81. One end of the threaded shaft I88 has a, tool engaging portion I88 formed thereon which is adapted to be engaged by a wrench or other suitable device for rotating the shaft whereby the crank pin 88 may be adjusted therealong for adjusting the lower end of the rack 88 on the crank I 83 with the index I88 indicating on the scale I88 the amount of adjustment of the lower end of the rack on the crank I88 for a purpose which will hereinafter appear.

A vertically arranged outer carrier frame I 88 is operatively mounted on the frame members 8 in front of the plate 82, which frame I88 is preferably of a rectangular formation, including a. pair of upright side members I I8 and I I8 having horizontally extending upper and lower end pieces III thereon. An inner frame 2 is adjustably mounted to be mover vertically on the carrier frame I88, said inner frame II2. including horisontally extending upper and lower end portions H3 and vertically extending portions II4 having strips II8 provided thereon, the lon itu in l Hi edges II8 of which strips extend outwardly from the longitudinal side edges of the vertically extending portions II4 of the inner frame H2 and slidably engage in vertically extending guideways II1 formed on the inner surfaces of the upright side members II8 and II8 of the carrier frame I88. A grid I I8 of fixed dimensions, having horizontally and vertically arranged wires or lines I22 of suitable thickness, and a plurality of light apertures II8 are provided on the inner frame II2, which light apertures I I8 are in spaced formation around the inner frame I I2 and are closed at their inner ends by any suitable transparent material which may be in the form of tabs I28, Figs. 7 and 19, having indicia which may be in the form of letters I 2| or other data provided thereon designating the lines I22 of the grid II8. The apertures II8 are closed at their outer ends by lamp housings I23 which are mounted on the outer surface of the inner frame H2 in any suitable light-proof manner. The lamp housings I23 have lamps I24 therein which are mounted in the lamp sockets I25, grounded at one side at I26 to the frame I and connected with a ring bus I21 by conductors I28, which ring bus I21 is in turn connected to one end of a secondary winding I28 of a transformer I38, which secondary winding I28 is grounded at its other end at I3I, Fig. 20.

The inner frame H2 is adjustable vertically on the carrier frame I88 by means of racks I32 and pinions I33, which racks I32 are mounted on the lower ends of the upright side members I I8 and II8 of the carrier frame I88. The pinions I33 mesh with the racks I32 and are mounted on the ends of a shaft I34 rotatably mounted on outwardly extending ears I35 on the inner frame I I2. Hand knobs I38 are provided on the shaft I34 for rotating the shaft for moving the pinions I33 on the racks I32. The lower end portion II3 of the inner frame II2 has spaced pins I31 extending vertically downward therefrom, which pins I31 are slidably mounted in bearings I38 mounted on the lower end piece III of the carrier frame I88. Adjusting screws I38 provided on the bearings I38 are adapted, to be actuated for engaging the pins I31 to hold the inner frame H2 in an adjusted position on the carrier frame. and vertically arranged springs I48 having their upper ends suitably secured to the upper ends of the side members II8 and II8 of the carrier frame I88 and their lower ends suitably secured to the inner frame II2 whereby the inner frame may be balanced on the carrier frame. The upright side members II8 and II8 of the carrier frame I88 have inwardly extending brackets HI and HI, respectively, provided adjacent to the upper and lower ends thereof, which brackets HI and HI are connected together at their outer ends by rods I42 and I42, respectively. Bell cranks I43 and I43 are pivotally mounted at one of their ends on the ends of the rods I42 and I42 adjacent to the outer ends of the brackets I on the side member II8 of the carrier frame I88, and straight cranks I44 are pivotally mounted at one of their ends on the ends of the rods I42 and I42 fixed to the brackets I4 I on the side member I I8 of the carrier frame. The bell cranks I43 and I43 and the other ends of the straight cranks I 44 are fixedly mounted on rods I45 pivotally mounted in bearings I48 on the upright frame members 5 of the fixed frame I The bell crank I43 on the lower end of the upright side member II8 of the carrier 2,382,988 frame I09 is pivotally connected at its outer end to the lower end I46 of a connecting rod I46 which extends vertically upward through the outer end of a plate I41 mounted on a short longitudinally extending side frame member I48, with the upper end of the connecting rod I46 having a bifurcated fitting I49 provided thereon pivoted to the outer end I50 of the bell crank I43 on the upper end of the upright side member IIO of the carrier frame. mounted on the connecting rod I46 between the bifurcated fitting I49 and the plate I41 for forcing the connecting rod in an upward direction during certain periods in the operation of v clutch from the .main shaft I04, which lever I94 A spring I5I is the machine. The bifurcated fitting I49 carries a roller I 52 which contacts with a cam I53 having a low part I54 and a high part I55 thereon, which high part I55 is adapted to actuate the connecting rod I46 in a downward direction for The cam I53 is fixedly mounted on the main shaft I04 adjacent to one end thereof, which main shaft I04 also has additional cams I56 and I51 fixedly mounted thereon, together with a conventional one-revolution clutch I58. main shaft I04 is driven in a counter-clockwise direction through the one-revolution clutch I58 by means of a conventional reduction geared electric motor I59 which drives a sprocket wheel I60 connected by a sprocket chain I6I to a sprocket wheel I62 on one end of the clutch I58. The cam I56 is eccentrically mounted on the opposite end of the main shaft I04 from the cam I51 and has a roller I83 contacting therewith,

which roller I63 is mounted on one end I64 of a lever I65 fixedly mounted at I66 to a rock shaft I61 rotatably mounted in bearings I88 on the frame members 4. One end of a lever ,I69 is fixedly connected to an outer end of therock .a purpose which will hereinafter be described. 20

The 25 shaft I61, the other end of which lever I99 is pivoted at I10 to one end of a link I1I, with the other end of the link I1I pivoted at I12 to a bell crank I13 pivotally mounted at I14 on a bracket I15 provided on ,one end of the beam 64. The

bell crank I13 and a connecting rod I16 are adapted to actuate one end of the movable cutting blade 6I toward and away from the stationary cutting blade of the conventional shearing device through a linkage mechanism, including parts I11 and I11 mounted on the brackets 50 I 15 and I18, respectively, which linkage part I11 and bell crank I13 are connected together by rods I19 and I having an expansion spring I8I provided thereon for returning the movable cutting blade 6| to its inoperative position.

The one-revolution clutch I58, Figs. 11 and 12, may be of any suitable conventional type, but for purposes of illustration is shown as being of the type manufactured by the Hilliard Corporation (Bulletin No. 139, October 25, 1937), 60

wherein upon the clutch being engaged hardened rolls I82, which act as wedges between an outer race I83 and fiat surfaces I84 on the inner hub I85, transmit the drive from the outer clutch housing I86 to the inner hub I and the main )3? inner end I93 of a lever I94 for releasing the 7 The tension spring 70 is pivotally mounted at I95 on a bracket I96 mounted on a support I91 which in turn is mounted on the frame members I48 and I48. The inner end I93 of the lever I94 is held in contact with the trip cam I88 of the clutch I58 by a leaf spring I98 and the other end I99 of the lever' has a plunger 200, Fig. 20, pivotally connected thereto, which plunger 200 is adapted to be actuated by a solenoid 20I of an electromagnet 202 mounted on a U-shaped bracket 203 of the support I91, with the solenoid 20I being connected by a conductor 204 at 205 with an electrical circuit, Fig. 20, to be hereinafter described.

The cam I 51 on the main shaft I04 has a lobe 206 forme thereon which is .adapted to contact with a roller 201 mounted on the outer free end of a spring arm 208 adapted to be actuated for actuating two conventional micro switches 209 and 209' contained within a housing suitably mounted on the upright frame member 5, Figs. 5 and 13. A conventional counter 2I0 is provided for counting the number of photographic prints produced by the machine, which counter 2I0 is mounted on the longitudinally extending frame member 2 and connected in circuit with the shutter I8 in the electric circuit, Fig. 20.

An electrical housing 2II is mounted on one side of "the fixed frame I and has a panel 2I2 provided thereon which carries two commercial electrically operated timing units 2I3 and 2I4, also light, shutter, contact printing and motor switches 2I5, 2I6, 2H and 2IB, respectively, and an electric socket 2 I 9 adapted to be engaged by an electric plug 220 connected to a suitable source of electrical supply (not shown) by conductors 22I,

Fig. 20.

Referring more specifically to Fig. 20, the electric motor I 59 is connected to the positive and negative sides of the electrical circuit by means of conductors 222 and 223 through the motor switch 2I8, and the light source 1 of the photographic projector A is connected at 224 to the conductor 222 of the positive side of the circuit 1 by conductor 225 and to the conductor 223 of the negative side of the circuit at 226 through the light switch 2I5 by theconductor 225'. The

solenoid 22 of the electromagnet 23 for actuating the plunger 2I which in turn actuates the Bowden wire 20' for actuating the shutter I 9 is connected by a conductor 221 to the conductor 222 at 228 and the other end of the conductor 221 is connected to the shutter switch 2 I6 which is adapted to engage with a contact 229 on one end of a conductor 230 when the photographic machine is operated to hold the shutter l9 open and to engage with a contact 23I on one end of a conductor 232 connected to the conductor 223 leading to the negative side of the circuit. The other end of the conductor 230 is connected to a contact 233 adapted to be engaged by an armature 234 of a relay 235 of the commercial electrically operated timing idevice 2I3 adapted to control the projection exposure time. The armature 234 is connected by a conductor 236 to a conductor 231, one end of which conductor 231 is connected to the electromagnet236 of therelay 235, with the other end of the conductor 231 being connected to a contact 239 of the micro switch 209. The other contact 240 of the micro switch 209is connected by a conductor 24I to a conductor 242 which in turn is connected at 243 with the Conductor 223.

.The electromagnet 238 of the relay 235 is connected with the electromagnet 244 of a relay 245 by a spring 249 and is connected by the conductor 264 to the solenoid 26I for actuating the plunger 260 mounted on the outer end of the lever I94 which is adapted to engage the shoulder I92 of trip cam I66 on the one-revolution clutch I56 at its inner end I93 for releasing the clutch from the main shaft I04. The solenoid MI is connected by the conductor 204 to a conductor 250 at 205, which conductor 256 is connected at one end 25I to the conductor 222 and at its other end to a contact 253 which is adapted to be engaged by an armature 254 of a relay 255. The armature 254 is normally held in engagement with the contact 253 by a spring I56 and is connected by a conductor 251 to a contact 256 of an electrically operated timing element 259 of the commercial electrically operated timing device 2I3. The switch arm 260 o! the timing element 259 is connected by a conductor 26I to the conductor 246 at 262 and is adapted to contact at predetermined time intervals with the contact 256 for completing the circuit through the conductors 251 and 26I. The. electromagnet 263 of the relay 255 is connected by a conductor 264 to the conductor 204 at 265 and to the switch arm 266 of a master control electrically operated timing element 261 of the timing device 2I3, which switch arm 266 is adapted to contact at predetermined time intervals with the contact 266 connected by a conductor 269 with the conductor 250 at 210. The armature 21I of the relay 245 is connected by a conductor 212 to the conductor 246 at 213 and is adapted to engage a contact 214 connected by a conductor 215 to the conductor 223 at 216. The commercial electrically operated timing device 2I3 is provided with a hand indicator 211 which is adapted to be adjusted along the scale 216 on the plate 216 by a hand knob 260 for changing the timing of the device 2I3 in a manner well known in the art.

A solenoid 26I is connected by a conductor 262 across the conductor 221 having the solenoid 22 for actuating the plunger 2| for actuating the shutter I6, which solenoid 26I is adapted to actuate a plunger 263 adapted to actuate the conventional counter 2I0 for counting the number of prints produced by the machine.

An electromagnet 264 of a relay 265 of the commercial electrically operated timing unit 2 for controlling the contact printing time of the indicia on the sensitized material is connected by a conductor 266 to a contact 261 01' the contact printing switch 2I1, which switch 2 I 1 is connected by a conductor 266 to a contact 266 of the micro switch 206', the other contact 266 of the micro switch 206 being connected to the end of the conductor 242 connected at 243 to the conductor 223. An armature 29I is adapted to be actuated by the electromagnet 264 of the relay 265, which armature 26I is connected by a conductor 262 to the conductor 266 and is adapted to engage a contact 263 connected to a conductor 294 which has the primary winding 29591 the transformer I36 in circuit therewith and connected to the conductor 222 at 296. One end of the secondary winding I26 of the transformer I30 is connected to the bus I21 of the contact printing portion of the machine with the other end of the secondary winding being grounded at I3 I. The electromagnet 2640f the relay 285 is also connected By a conductor 291 to a contact 296 which is adapted to be engaged by an armature 269 of a relay 306, the electromagnet 30I, of which is connected by a conductor 302 to the conductor 266 and to a switch arm 303 of a timing element 364 of the commercial electrically operated timing device 2I4, which switch arm 303 is adapted to contact with the contact 305 connected by a conductor 366 with the conductor 256 at 301. The armature 266 is normally held in an open position by a spring 306 and is connected by a conductor 369 to the conductor 306. The commercial electrically operated timing device 2I4 is provided with a hand indicator 3I0 which is adapted to be adjusted along the scale 3| I by a hand knob 3I2 for changing the timing of the device in a manner well known in the art.

In automatically making photographic prints by the improved photographic printing machine, assuming that the electrical socket 2I6 has been engaged by the plug 226 for connecting the electrical circuit, Fig. 20, with a source of electrical supply, by closing the light switch 2I5 a circuit is completed from the positive side of the circuit through the conductor 222, conductor 225 through the lamp 1, light switch 2I5 and conductor 225' to the negative side of the circuit, thereby energizing the lamp 1, and producing a source 01' illumination in the lamp housing 6 o! the photographic projector A, and also assuming that the shutter switch 2 I6 has been moved upwardly to engage the contact 23I whereby a circuit is completed from the conductor 222 through the conductor 221 including the solenoid 22 of the electromagnet 23 adapted to actuate the plunger 2| connected to the Bowden wire 20' which In turn actuates the leaves I9 oi the shutter I! to an open position, then through the conductor 232, to the conductor 223, to the negative side of the circuit.

By energizing the lamp 1 the photographic projector A is adapted to project an image 0! the negative 6 outwardly in a horizon al direction through the shutter I6.- onto the portion of the strip of sensitized material I5 in front of the plate 52 of the printing portion B of the machine. and by actuating the projector A longitudinally in either direction on the frame I different enlargements of predetermined ratios or various enlargements having difl'erent degrees of magnification of the negative may be projected onto the strip of sensitized material, which different onlargements of predetermined ratios may be determined by the device 3I3, Fig. l, in a manner disclosed in the pending application Serial No. 471,055, filed January 1, 1943, above referred to.

Upon obtaining the desired enlargement oi the negative image projected onto the sensitized material, the motor switch U6 is closed, thus completing a circuit through the conductor 222 to the motor I59 and from the motor to the negative side of the circuit by conductor 223, whereby the motor I59 is caused to rotate which rotates the one-revolution clutch I56 in a counter-clockwise direction through the sprocket wheels I60 and IE2 and chain I6I, whereby the main shaft I04 is rotated in a counter-clockwise direction rotating the cams I53, I56 and I5! in the same directon. As the cam I53 is revolved, the roller I52 on the bifurcated fitting I49 on the upper end of the connecting rod I46 is caused to ride up on the high part I55 of the cam which forces the connecting rod I46 in a downward direction against the action of the spring I5I. The connecting rod I46 pushes downwardly on the outer end of the arm of the bell crank I43 and pulls downwardly on the outer end I50 of the bell crank I43, rotating the bell cranks I43 and I43 which in turn rotate the rods I45 in a clockwise direction and causing the other ends of the arms of the bell cranks pivoted to the rods I42 and I42 adjacent to the brackets I4I to pull inwardly on the brackets I4I. Upon the rotation of the rods I45 by the bell cranks I43 and I43, the upper ends of the straight cranks I44 are caused to pull inwardly on the brackets I4I' whereby the carrier frame I09 carrying the inner frame II2 having the contact printing indicia I2I thereon, including the grid H8, is caused to be moved inwardl toward the plate 52 until the grid II8 on the inner frame and the transparent tabs I20 having the indica I2I thereon designating the grid lines I22 contact with the portion of the strip of sensitized material I5 in contact with the front of the plate 52. I

By moving the shutter switch 2I6 downwardly into engagement with the contact 229 and closing the contact printing switch 2I1, upon the transparent tabs I and grid I I8 contacting with the sensitized material, the switch cam I51 has been rotated sufficiently to cause its lobe 206 to contact with the roller 201 of the switch arm 208, whereupon the switch arm 208 is caused to be moved inwardly for actuating the micro switches 209 and 209 into engagement with their contacts 239-240 and 289-2 90, respectively, whereby cur- I rent is caused to flow from the conductor 222 through the conductor 221 through the solenoid 22 of the electromagnet 23 for actuating the plunger 2I which in turn is adapted to actuate the Bowden wire 20' for operating the leaves I8 of the shutter I9 to an open position. The circuit is completed through the shutter switch 2I6, conductor 230, the armature 234 of the elec- 222 through the conductor 250, armature 254 of the relay 255, conductor 251 through the switch arm 260 of a timing element 259 of the conventional electrically operated timing device 2I3, conductor 26I, then through the electromagnet 238 of the relay 235, conductor 231, the micro switch 209, conductors MI and 242 to the negative side of the circuit through the conductor 223. The current is also .caused to flow from the conductor 26I through the conductor 246 through the electromagnet 244 of the relay 245 to the conductor 231 and through the micro switch 209, conductors HI and 242 and to the negative side 01'' the circuit through conductor 223.

After a predetermined time interval, which time interval may be set by adjusting the hand indicator 211 by means, of the knob 280 along the scale 218 on the conventional electrically operated timing device 2I3, the switch arm 266 of the timing element 261 is caused to engage the contact 268 whereb a circuit is completed from the conductor 250, conductor 269 through the timing element 261, conductor 264, through the electromagnet 263 of the relay 255 to the conductor 204.

The micro switches 209 and 209' and the contact printing switch 2I1 being closed, a circuit is completed from the conductor 250 to the conductor 306, through the conductor 309, the armature 299, of the relay 300, conductor 291 through the electromagnet 284 of thejrelay 295 of the timing unit 2I4, and from the electromagnet 284 to'the conductor 286 through the contact printing switch 2I1, conductor 288, through the micro switch 209 to the conductor 242 and conductor 223 to the negative side of the circuit. A circuit is also completed from the conductor 222, through the conductor 294 including the primary winding 295 of the transformer I30, through the armatur 29I, conductor 292 to the conductor 286 through the contact printing switch 2II, conductor 288, micro switch 209, conductor 242 and conductor 223 connected to the negative side of the circuit. Another circuit may also be completed from the conductor 250 through conductor 306 through the switch arm 303 of the timing element 304 of the conventional electrically operated timing device 2 I 4, and from the switch arm 303 to the conductor 302 through the electromagnet 30I 0f the relay 300 to the conductor 286. The primary winding 295 of the transformer I30 being energized, current is caused to flow in the secondary winding I29 for lighting the lamps I24 through the ring bus I21, whereupon the indicia I2I is printed by contact in the margins of the photograph prints of the negative image projected onto the sensitized material, said indicia I2I designating the lines I22 of the grid III! which has been also printed on the sensitized material. The time of exposure of the indicia I2I on the sensitized material may be regulated by the electrically operated timing device 2I4 by adjusting the hand indicator 3I0 by the knob 3I2 along the scale 3| I.

Upon the electromagnet 238 of the relay 235 and the electromagnet 244 of the relay 245 being energized, the armature 234 of th relay 235 is pulled downwardly, breaking the circuit through the solenoid 22 of the electromagnet 23, whereby the shutter I9 is caused to close, actuating the counter 2I0 which is connected by the conductor 282 in circuit with the conductor 22? and shielding the sensitized material from the negative image from the photographic projector A, and the armature 21I of the relay 245 is pulled upwardly into engagement with the contact 214 whereby a circuit is completed from the conductor 215 through the conductor 223 to the negative side of the circuit. By actuating the armature 234 by the electromagnet 238 of the relay 235 into engagement with the contact 248, a circult is completed from the conductor 250 through a conductor 204, including the solenoid 20I which is adapted to actuate the plunger 200 connected on the outer end I99 of the lever I94, whereby the lever is moved on its pivot and causing the inner end I93 thereof to be moved out of contact with the shoulder I92 of the trip cam I88, whereby the one-revolution clutch I58 is caused to engage and drive the main shaft I04 one complete revolution, thereby rotating the cam I53 and causing the low part I54 thereof to contact with the roller I52 on the bifurcated fitting M9 on the upper end of the connecting rod I46, whereupon the spring I5I forces the connecting rod in an upward direction which moves the bell cranks I43 and I43 in a counter-clockwise direction, thus moving the carrier frame I09 outwardly and hence the transparent tabs I20 having the letters I2I, including the grid II8 on the inner frame II2, out of contact with the sensitized material.

complete revolution also rotates the crank I03 which in its downward movement pulls downwardly on the rack 96 which drives the feed roller The main shaft I04 in rotating one 84 through the overrunning clutch 88 in a clockwise direction, whereby after each exposure the required amount of the sensitized material I is drawn from the supply roll 25 and fed by the feed roller 54 toward the conventional shearing device of the cutting portion 3 of the machine between the stationary and movable blades 80 and BI, respectively, thereof. The take-up roller 59 is rotated at a higher speed than the feed roller 54 whereby the take-up rollers 58 and 58 are adapted to take up any slack in the strip of sensitized material from the feed roller 54 to the shearing device and to keep the portion of sensitized material therebetween taut, the tension of which is adapted to be adjusted by screwing the nut 18 on the shaft portion 55 of the take-up roller 58 for adjusting the pressure of the spring 12 for adjusting the amount of frictional contact of the disk 58 with the disk 51 of the friction clutch 88, which clutch 85 can slip when the tension reaches the point for which it is adjusted.

The amount of rotation of the feed roller 54 for feeding the strip of sensitized material toward the shearing device may be controlled for rotating the shaft I88 of the crank I88 with a suitable tool adapted to engage the end I08 of the shaft, whereby the crank pin 88 i adjusted along the shaft carrying the lower end of the rack 98 with it, thus varying the stroke of the rack 86 meshing with the gear 95 of the onerevolution clutch I58, with the amount of adjustment being indicated on the scale I88 by the index I85.

The main shaft I04 in rotating also rotates the eccentrically mounted cam I58 which contacts with the roller I68 on the end of the lever I85, thereby actuating the lever which moves the rock shaft I81 on its bearings I88 which in turn moves the lever I88 connected by the link I'll with the bell crank I18 which in turn actuates the part I11 0: the linkage mechanism for operating the cuttin blade 8| toward the stationary blade 58 of the shearing device, on the cutting portion C of the machine, to cut the photographic .prints 8, Fig. 21, from the strip of sensitized material.

As-the position of the shearingdevice is fixed while the vertical position of the enlarging projection lenses It on the lower end-of the extensible bellows II of the enlarging camera I! of'the photographic projector A changes with the.;de-

gree of enlargement of the negative image projected onto the strip of sensitized material for producing a print thereof on the sensitized material, and the position of the inner frame 'I I2 on the carrier frame I08 is also changed in a vertical direction so that the center'ofa projected image may coincide with the center of the grid II8, it is necessary that the distance from the upper edge of the photographic print, Fig. 21, to the blades 80 and SI of the shearing device is a multiple of the size of a print. This is accomplishedby the adjusting mechanism E including the adjusting roller 58 which may be moved around on the feed roller 54 in contact with the strip of sensitized material by unscrewing the nuts 81 on the shaft 84 away from the arms 8I, whereby the pinions 88 on the ends of the shaft may be moved in mesh around on the members 82 and, when the roller 58 has been moved to its adjusted position, the nuts 81 are screwed outwardly on the shaft into engagement with the arms BI, thereby preventing the pinions 88 from moving on the members 82, thus holding the adjusting roller 58 in its adjusted position. The strip of sensitized material passing over the feed roller 54 and under the ad justing roller 58, then through take-up rollers 59 and 58 is caused to travel a greater distance as the adjusting roller 58 is moved in a clockwise direction on the feed roller 54 and locked in the selected position by the nuts 81. Upon the motor I59 driving the main shaft I04 on complete revolution, the inner end I93 of the lever I94 is caused to engage the shoulder I92 on the trip cam I88 of the one-revolution clutch I58, whereby the clutch is disengaged from the main shaft I04, thus stopping the rotation of the main shaft, with the switch cam I51 having been rotated sufficiently to cause the free end of the switch arm 208 to be released by the lobe 258 on the switch cam I51 and permitting the switch arm 108 to move the micro switches 208 and 208' to an inoperative position. thereby breaking the electrical circuits and returning the apparatus to its original condition.

Upon the switch cam I51 releasing the switch arm 288 for actuating the micro switches 208 and 289' to an open position, the solenoid 244 of the relay 245 has caused the armature I to engage the contact 214 so current is maintained back to the negative side of the circuit from the conductor 248 through the armature 21I, conductor 2" and conductor 22!.

This cycle of operation is automatically repeated in making each photographic print. The shutter I8 may be held open by the solenoid 22 while the conventional electrically operated exposure timing device III for the photographic print and the main shaft I84 are stationary by closing the circuit to the lamp 1 through the light switch 2i! and opening the circuit to the timing device 2I8 by the shutter switch 2I8 and if it is not desired to print the indicia III by contact in the margins of the completed photographic prints, the contact switch 2" may be opened, thereby breaking thecircuit to the conventional electrically operated contact printing timing device 2, thus making the timing device 2| 4 inoperative.

It will thus be seen that there has herein been provideda novel and useful form of automatically operated photographic printing machine which is well adapted for the purposes indicated. Even though there has herein been shown and described certain features of construction and operation of parts, it is nevertheless to be understood that vardo not depart from the spirit or scope of the claims.

Having thus described my invention, what I claim as new and wish'to secure by Letters Patent is:

1. In a photographic printing machine adapted to produce automatically a plurality of photographic prints of a negative on a strip of sensitized material, the combination of a shutter, a frame having a grid thereon mounted in front of said strip of sensitized material, a photographic projector adapted to project an enlarged image of the negative onto a portion of said strip of sensitized material through the shutter and grid for producing a print of the negative and grid on the sensitized material, means adapted to operate automatically said shutter at predetermined time intervals for exposing the strip of sensitized ma-, terial and grid to the negative image for producing a plurality of prints of the negative on other portions of the strip of sensitized material, indicia andlighting means mounted on said frame, saidindicia designating the lines of the j grid, means for automatically actuating said frame including said grid and indicia at predetermined time intervals into engagement with the strip of sensitized material during an exposure and out of engagement; with the strip of sensitized material after each exposure, said lighting means adapted to be operated at predetermined time intervals for printing the indicia on the negative prints during the engagements of said frame with the strip of sensitized material, a shearing device, and means including a feed roller adapted to feed the strip of sensitized material a predetermined distance after each printing of the negative, grid and indicia on the strip of sensitized material.

2. In a photographic printing machine adapted to produce automatically a plurality of photographic prints of a negative on a strip of sensitized material, the combination of a shutter, a carrier frame mounted in front of said strip of sensitized material, a frame movably mounted on said carrier frame, a grid and means including indicia designating the grid lines, and lighting devices mounted on said second-mentioned frame, a, photographic projector adapted to project anenlarged image of said negative through said shutter and said frames for producing a print of the negative and grid on a portion of the strip of sensitized material, means adapted to operate automatically said shutter at predetermined time intervals for exposing the strip of sensitized material to the negative image for producing a plurality of prints of the negative and grid on other portions of the strip of sensitized material, means for automatically actuating the carrier frame at predetermined time intervals for moving said second mentioned frame including said grid and indicia into engagement with the strip of sensitized material during exposures of the strip of sensitized material to the negative image and out of engagement from the strip of sensitized material after exposures, said lighting devices adapted to be operated at predetermined time intervals for printing the indicia on the negative prints during the engagement of said last-mentioned frame with said strip of sensitized material, a shearing device, and means including a feed roller adapted to feed the strip of sensitized material a predetermined distance after each printing of the negative, grid and indicia on the strip of sensitized materal.

3. In a photographic printing machine adapted to produce automatically a plurality of photographic prints of a negative on a strip of sensitized material, the combination of a shutter, a carrier frame movably mounted in front of the strip of sensitized material, means for automati-.

cally actuating said carrier frame at predetermined time intervals toward and away from the strip of sensitized material, a second frame adjustably mounted on said carrier frame, a grid,

indicia, and electric lamps carried by said second frame, means connecting said lamps with an electric circuit, a photographic projector adapted to project an image of the negative through said shutter and grid for producing a print of the negative and grid on a portion of said sensi tized material, said indicia arranged in spaced formation on the second-mentioned frame and surrounding the negative on the sensitized material, said lamps adapted to be actuated to ex-,

cally operate the shutter at predetermined time intervals for exposing the strip of sensitized material and grid to the negative image for producing a plurality of prints of the negative on other portionsof the strip of sensitized material, means for energizing said electric circuit at predetermined time intervals for lighting said lamps whereby the indicia is printed on the sensitzed materal during each exposure of the negative image, a shearing device, means for automatically operating the shearing device for cutting the negative prints from the strip of sensitized material, and means including a feed roller for feeding the strip of sensitized material a predetermined distance after each exposure toward the shearing device. 4. In a photographic printing machine adapted to produce automatically a plurality of photographic prints of a negative on a strip of sensitized material, the combination of a shutter, a plate, said strip of sensitized material adapted to move in contact with said plate, a carrier frame, another frame movably mounted on said carrier frame, a grid, lamps and indicia mounted on said inner frame, said indicia and grid adapted to contact with said strip of sensitized material, said indicia adapted to be printed on the sensitized material by said lamps and designating the lines of the grid, a photographic projector adapted to project different enlargements of said negative through the shutter onto the portion of the strip of sensitized material contacting with said plate, a shaft, means including a one-revolution clutch for rotating said shaft one revolution at predetermined time intervals, means connected to be actuated by said shaft for actuating said shutter at predetermined time intervals for exposing the strip of sensitized material to the negative image for producing a plurality of prints of the negative on other portions of the strip of sensitized material, means connected to be operated by said shaft for actuating said carrier frame at predetermined time intervals for moving said second frame including said grid and indicia into engagement with the portion of the strip of sensitized material contacting said plate and to actuate said frames including the grid, indicia and lamps away from said strip of sensitized material, a cam member mounted on said shaft, means adapted to be actuated by said cam member and connected to energize said lamps at predetermined time intervals during contact of said grid and indicia with the strip of sensitized material, a shearing device, means connected to be operated by said shaft for automatically actuating said shearing device for cutting the negative prints from the strip of sensitized material, means including a, feed roller for feeding the strip of sensitized material toward the shearing device, and means connected to be actuated by said shaft for actuating the feed roller a predetermined distance after each exposure.

5. In a photographic printing machine adapted to produce automatically a pluralityof photographic prints of a negative on a strip of sensitized material, the combination of a support, a shutter, a plate mounted in back of and adapted to be engaged by a. portion of said strip of sensitized material, a carrier frame movably mounted in front of the strip of sensitized material, a second frame slidably mounted to move vertically on said carrier frame, a grid, indicia and lamps mounted on said second frame, a photographic projector mounted to move on said support relative to the strip of sensitized material and including an enlarging camera having an extensible bellows extending vertically downward therefrom. projection lenses and a prism mounted on the lower end of said bellows and adapted to project an enlarged image of the negative through the shutter and grid for producing a print of the a negative and grid on the portion of the strip of sensitized material in front of said plate, means for moving the photographic projector relative to the strip of sensitized material for producing any desired enlargement of the negative thereon, means adapted to automatically actuate the extensible bellows in a vertical direction for automatically focusing the camera for any movement of the photographic projector on the support relative to the strip of sensitized material, said indicia mounted in spaced formation on the second frame and adapted to be printed on the strip of sensitized material surrounding the negative print for designating the lines of the grid, said lamps adapted to be energized for exposing the indicia to the rays therefrom for causing the indicia to be printed on the strip of sensitized material, means for automatically operating the shutter at predetermined time intervals for exposing the strip of sensitized material to the negative image for producing a plurality of prints of the negative on other portions of the strip of sensitized material, means automatically actuating the carrier frame toward said plate for contacting the indicia and grid with the portion of the strip of sensitizedmaterial engaging said plate a during the operation of the shuttter for exposing the strip of sensitized material to the negative image, and adapted to actuate automatically said carrier frame away from said plate after the shutter has been actuated to prevent exposure of the strip of sensitized material to the negative tmage, means for energizing said lamps at predetermined time intervals during the contacting period of said grid and indicia with the strip assasss oi sensitized material whereby the indicia is printed on the strip of sensitized material during each exposure of the strip or sensitized material to the negative image. means for actuating the second frame in a vertical direction relative to any vertical movement of the extensible bellows of the enlarging camera for producing different degrees of enlargements of the negative image on the sensitized material, a shearing device, means for automatically actuating the shearing device at predetermined time intervals for cutting the negative prints from the strip of sensitized material, and automatically operated means including a feed roller for feeding the strip of sensitized material a predetermined distance after each exposure toward the shearing device.

6. In a photographic printing machine adapted to produce automatically a plurality of prints of a negative on a strip of sensitized material, the combination of a frame having a grid and plurality of lamp housings thereon, lamps in said housings, transparent elements having indicia thereon closing one of the ends of said housings, a photographic projector adapted to project an enlarged image of the negative through said grid onto said sensitized material for producing a print of the negative thereon and a print of the grid over the negative print, said lamps adapted to print the indicia on said sensitized material, means for automatically actuating said frame including said grid, lamp carrying housings and indicia at predetermined time intervals into engagement with the sensitized material during each exposure and out of engagement therefrom after each exposure and means for energizing said lamps at predetermined time intervals for printing said indicia on the sensitized material during engagement of said frame with the strip of sensitized material, said indicia designating the lines of said grid.

GEORGE C. GARRAWAY. 

